Programming Interface Information:
This information is NOT intended to be used as Programming Interfaces of z/VM. |
ACCBK
Control Block Contents
ACCBK DSECT
Cross Reference (Contains links to field and bit definitions)
ACCBK Prolog
Name : HCPACCBK Description: Initial file system access block DSECT : ACCBK Function : The ACCBK contains information that describes what the CP file system's initial access order should look like. Created by : HCPZPQ Deleted by : HCPZIACI
ACCBK Control Block Content
ACCBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure ACCBK Initial file system access block 0000 0 Signed 2 ACCBKNUM Maximum number of slots 0002 2 Signed 2 * Reserved for future IBM use 0004 4 Signed 4 * Reserved for future IBM use 0008 8 Bitstring 1 ACCBKV (0) Start of variable length data 0008 8 Character 8 ACCUSRID Userid for minidisk 0010 16 Signed 2 ACCVDEV Virtual address of minidisk 0012 18 Bitstring 1 ACCOPTS Options used with linking .1.. .... ACCBNLNK X'40' Do a DEFINE MDISK ..1. .... ACCBNCAC X'20' Don't do cache 0013 19 Bitstring 1 ACCMODE Access mode to use (same as DDEVMODE) 0000000C ACCELEN *-ACCUSRID Length of variable portion 0008 8 Bitstring 312 ACCSTMTS Space for this many 00000028 ACCSIZED (*-ACCBK+7)/8 Length of area in d-words
ACCBK Storage Layout
*** ACCBK - Initial file system access block * * +-------------+-------------+---------------------------+ * 0 | ACCBKNUM |/////////////|///////////////////////////| * +-------------+-------------+---------------------------+ * 8 |///////////////////////////////////////////////////////| * =///////////////////////////////////////////////////////= * |///////////////////////////////////////////////////////| * +-------------------------------------------------------+ * *** ACCBK - Initial file system access block *** Overlay for ACCBKV in ACCBK * * +-------------------------------------------------------+ * 8 | ACCUSRID | * +-------------+------+------+---------------------------+ * 10 | ACCVDEV |:OPTS |:MODE | 14 * +-------------+------+------+ * *** Overlay for ACCBKV in ACCBK *** Overlay for ACCBKV in ACCBK * * +-------------------------------------------------------+ * 8 | | * = ACCSTMTS = * | | * +-------------------------------------------------------+ * 140 * *** Overlay for ACCBKV in ACCBK
ACCBK Cross Reference
Symbol Dspl Value -------------- ---- ----- ACCBKNUM 0000 ACCBKV 0008 ACCBNCAC 0012 20 ACCBNLNK 0012 40 ACCELEN 0013 0000000C ACCMODE 0013 ACCOPTS 0012 ACCSIZED 0008 00000028 ACCSTMTS 0008 ACCUSRID 0008 ACCVDEV 0010
Copyright IBM Corporation, 1990, 2001